It follows the visual identity that it already established in
Microsoft products and marketing for years, and it reflects the
style of typography that is at the core of their Windows Phone and
Windows 8 (formerly “Metro”) operating systems. But I think
it’s the wrong choice. Or maybe the right one, but several years
too late.

For another, more strident, argument along the same lines, see this piece by Andrew Brett Watson. Me, I don’t see Segoe (Microsoft’s identity font) as being that close to Myriad (Apple’s). But they’re quite obviously along the same lines.